Zobrazeno 1 - 10
of 75
pro vyhledávání: '"N. L. Wayne"'
Publikováno v:
Reproduction. 89:697-706
Musk shrews were maintained from weaning (20 days of age) for 20 or 40 days in one of several social conditions. In Exp. 1, young males housed with adult females gained more weight and had heavier sex accessory organs than did young males housed with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b2c45fc3b5bbd2d53635c08659b15cb
https://doi.org/10.1530/jrf.0.0890697
https://doi.org/10.1530/jrf.0.0890697
Autor:
W, Lee, N L, Wayne
Publikováno v:
Endocrinology. 139(12)
The molecular links between membrane excitability and neurohormone synthesis were investigated using a simple model system: the bag cell neurons of Aplysia. We tested the hypothesis that the electrical afterdischarge, which leads to depletion of egg-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::023112835f99c3788ed634212edc0ec3
https://pubmed.ncbi.nlm.nih.gov/9832450
https://pubmed.ncbi.nlm.nih.gov/9832450
Publikováno v:
Endocrinology. 135(2)
A single gene defect of the circadian clock (tau mutation) has recently been described that results in a shortening of the circadian activity cycle of the Syrian hamster. In the homozygous animal, free running activity is shortened by 4 h, resulting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8a79ea4cfb74dc55b3992832297b44b
https://pubmed.ncbi.nlm.nih.gov/8033819
https://pubmed.ncbi.nlm.nih.gov/8033819
Publikováno v:
Biology of reproduction. 50(4)
Seasonal reproduction in the ewe is generated by an endogenous circannual rhythm of reproductive neuroendocrine activity. Exposure to as few as 70 days of photoperiodic information a year is sufficient to synchronize the rhythm. The present study was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d25576114e5802c04c2a64d47c582d0a
https://pubmed.ncbi.nlm.nih.gov/8199277
https://pubmed.ncbi.nlm.nih.gov/8199277
Publikováno v:
Journal of reproduction and fertility. 91(1)
In the first experiment, the effects of food availability on growth and reproduction were assessed by placing male musk shrews on 3 different feeding schedules, i.e. fed ad libitum, fed 50% of the amount eaten by the ad-libitum controls or fed 25% of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bae7476d57310299e4458a3ba329d478
https://pubmed.ncbi.nlm.nih.gov/1995861
https://pubmed.ncbi.nlm.nih.gov/1995861
Autor:
N. L. Wayne, E. F. Rissman
Publikováno v:
Journal of reproduction and fertility. 89(2)
In Exp. 1, the time course for the photoperiodic response in juvenile male musk shrews was examined by exposing animals to short (10L:14D) or long (14L:10D or 18L:6D) daylengths for 10, 20, 40 or 56 days. When compared with the response of animals ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daee399dc2ae24dfca16a22932f6657b
https://pubmed.ncbi.nlm.nih.gov/2401995
https://pubmed.ncbi.nlm.nih.gov/2401995
Autor:
N L, Wayne, E F, Rissman
Publikováno v:
Progress in clinical and biological research. 342
In summary, photoperiod, social cues and food availability impact upon the reproductive system of the male musk shrew to alter the timing of reproductive maturation and hence opportunistic breeding. We can speculate that there might be a hierarchy to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4135aea60037b4de41cb3e0caefff208
https://pubmed.ncbi.nlm.nih.gov/2381955
https://pubmed.ncbi.nlm.nih.gov/2381955
Publikováno v:
Biology of reproduction. 32(5)
Recent evidence indicates that the breeding season of the Suffolk ewe ends because of loss of response to a day length that was previously inductive. This condition of photorefractoriness could potentially also initiate reproduction, as is the case i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5ded1dad997f5d7a8d4f0a067b149ed6
https://pubmed.ncbi.nlm.nih.gov/4016170
https://pubmed.ncbi.nlm.nih.gov/4016170
Publikováno v:
Biology of reproduction. 39(2)
Two studies were performed to determine if the transition into anestrus in the Suffolk ewe results from the lack of a decrease in photoperiod, a signal suggested to be important in maintaining the breeding season, or from an obligatory turn-off that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::7e1203cb3389373359efe181801c2763
https://pubmed.ncbi.nlm.nih.gov/3179379
https://pubmed.ncbi.nlm.nih.gov/3179379
Publikováno v:
Biology of reproduction. 39(1)
The main objective of the study was to test the hypothesis that the phase of melatonin release with respect to the light-dark cycle mediates the effects of photoperiod on the reproductive response of the ewe. To test the phase hypothesis, we eliminat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c45d7628a7dc28efb3265f491a3a39e9
https://pubmed.ncbi.nlm.nih.gov/3207798
https://pubmed.ncbi.nlm.nih.gov/3207798